#SGHaze update

SINGAPORE — An expected improvement in the haze did not occur this morning (Sept 29) and air quality persisted in the very unhealthy range since 4am. Hazy conditions persisted in Singapore today as haze from Sumatra continued to spread to the surrounding region, said the National Environment Agency in an update this evening. The current hazy conditions are expected to continue for the rest of today and hazy conditions can still be expected tomorrow. The 24-hour PSI for the next 24 hours is expected to be in the high end of the unhealthy range and the low end of the very unhealthy range. As at 10pm today, the 24-hour PSI was in the very unhealthy range at 163-204. The three-hour PSI was 151.The one-hour PM2.5 concentration was 148 to 196 microgrammes per cubic metre. A total of 49 hotspots were detected in Sumatra today. The low hotspot count was due to cloud cover over par...